WordMat

Windows Version 1.16 (18/2-2019) ~136MB
This version is for Office 2010, 2013, 2016, o365.If you receive warning about ‘unknown publisher’ during installation click ‘more info’ and ‘run anyway’

Download WordMat Free For Mac
Mac Version 1.16 (18/2-2019) ~138MBThis version is only for Word 2016(o365).When installing security settings must be set to allow installation of all programs, not just from the app store, which is default. Go to system settings | Security and anonymity | Allow all programs.
Also ensure Word is updated.